Hepatitis D laboratory findings: Difference between revisions

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[[File:Hep D diagnosis.png|thumb|center|700px|Hepatitis D diagnosis <SMALL> Adapted from ''[http://www.who.int/en/ World Health Organization]''<ref>{{Cite web | title = http://www.who.int/en/ | url = http://www.who.int/en/}}</ref></SMALL>]]


==References==
==References==

Revision as of 18:06, 7 August 2014

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Varun Kumar, M.B.B.S. [2]

Laboratory Findings

The table below describes the significance of diagnostic markers in HDV infection. [1]

Diagnostic Markers Significance
Anti-HDV IgG antibody
  • Positive in persons exposed to HDV
  • Persists, even after viral clearance
Anti-HDV IgM antibody
  • Positive in acute infection
  • Negative in past infection
  • Persists in many patients with chronic infection
HDV RNA

Qualitative

  • Marker of HDV replication
  • Positive in chronic infection
  • Negative in spontaneous or treatment-induced viral clearance

Quantitative

  • Useful in monitoring or predicting treatment response
HBsAg

Qualitative

  • Must be positive for HDV infectivity

Quantitative

  • Positively correlated with HDV RNA
  • Falling titer signals HBsAg loss, and hence HDV clearance
  • Useful in monitoring or predicting treatment response
HBeAg
  • Negative in an estimated 85% of patients
  • Associated with detectable anti-HBe
HBV DNA

Quantitative

  • Suppressed by HDV
  • Negative or low levels in most patients
  • May be increased in patients with detectable HBeAg
  • Can reactivate after spontaneous or treatment-induced clearance of HDV
ALT
  • Increased in most patients
  • Does not correlate well with degree of histological liver damage
Hepatitis D diagnosis Adapted from World Health Organization[2]

References

  1. Hughes SA, Wedemeyer H, Harrison PM (2011). "Hepatitis delta virus". Lancet. 378 (9785): 73–85. doi:10.1016/S0140-6736(10)61931-9. PMID 21511329.
  2. "http://www.who.int/en/". External link in |title= (help)

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